Mighty Mouse
WKR
Fenix HM65R-T. It's pricey and a bit heavy but sure is bright.
+1.Petzl Actik Core. One rechargeable battery lasts me well over a week on pack hunts. I’ve been using Petzl headlamps for 30 ish years starting with the original Tikka. I keep a really small old original Black Diamond Ion for backup in my emergency kit. It weighs near nothing and runs on two lithium coin cells.